X = y - 3
x + 3y = 13
x + 3y = 13 (replace x with y-3)
y - 3 + 3y = 13
4y - 3 = 13
4y = 13 + 3
4y = 16
y = 16/4
y = 4
x = y - 3
x = 4 - 3
x = 1
The answer is A. (1,4)
Sam gets (500/10)*3=150<span>£
harry gets (150/100)*35= 52.5</span>£
Answer:
-1110/39 is the number
Step-by-step explanation:
We want to find the number should be added to both numerator and denominator of the ratio 29 : 36 to make it equal to 3:42
Let the number to be added be x.
Thus;
(29 + x) : (36 + x) = 3:42
The proportion symbol is essentialy a division symbol.
Thus;
(29 + x)/(36 + x) = 3/42
Cross multiply to give;
42(29 + x) = 3(36 + x)
1218 + 42x = 108 + 3x
1218 - 108 = 3x - 42x
1110 = - 39x
x = -1110/39
Answer:
-60
Step-by-step explanation:
<em>We'd solve anything inside the parentheses first:</em>
-5 * 4 = -20
<em>Now multiply:</em>
-20 * 3 = -60
Our answer would be -60
Answer:
you doing this for miss patino too huhStep-by-step explanation:
